December 8, 2020

Operating Principle and Functions:
The series SYF roots vacuum pump is with overflow valve. The figure-of-eight rotors are counter-rotating at a frequent velocity inside the pump housing for suction and exhaust of fuel. Two rotors are supported by two bearings and synchronized by a gear, which ensures these two rotors in sure relative positions. They may be close to to one another and to the housing without real contacting, so lubrication is unnecessary in the doing work housing. The carefully balanced operating parts and high precision bevel wheels ensue the pump be operated stably and constantly underneath the situation of high-pressure distinction. Dynamic seal portion use our patent technologies and imported oil seals, the vibration level of shaft around the shaft seals is managed to less than 0.02mm.
A gravity valve is installed between the suction and exhaust part of the pump. The perform from the gravity valve is as follows, when the stress distinction amongst the suction and exhaust portion is above the fat of the valve, the valve opens automatically, which helps make the stress big difference usually continue to keep inside a fixed controllable worth, the value may be the allowable highest strain variation to be sure the pump perform usually and to ensure that actually, the roots vacuum pump with overflow valve is actually a kind of overload self-protective pump.
Series SYF roots vacuum pump with overflow valve has considerably higher pace at fairly decrease inlet pressure and it’s possessed overload self-protective function. Because it can be a pump of dry clearance seal construction, if a specific pumping pace price and an ultimate vacuum must be obtained, it really is essential to supply a reduced inlet stress for decreasing the back flow, hence, a pump has to be backed in use, roots vacuum pump really should be started soon just after its inlet pressure reaches a permissible value for economization.
It is allow to select various kinds of pump because the backing pump for factual needs, this kind of as oil seal pump and liquid ring vacuum pump. When pumping the gasoline containing substantial volume of vapor, the liquid ring vacuum pump is definitely the ideal backing pump.